[BUG] KeyError when plotting Array of Measurements with Plots 1.2.3

[EHBaozi]

Details

Stacktrace:

julia> using Plots, Measurements
julia> plot([1±0.1])
ERROR: KeyError: key :seriestype not found
Stacktrace:
 [1] getindex at .\dict.jl:477 [inlined]
 [2] process_sliced_series_attributes!(::Plots.Plot{Plots.GRBackend}, ::Array{Dict{Symbol,Any},1}) at C:\Users\invis\.julia\packages\Plots\l9il6\src\pipeline.jl:165
 [3] _process_seriesrecipes!(::Plots.Plot{Plots.GRBackend}, ::Array{Dict{Symbol,Any},1}) at C:\Users\invis\.julia\packages\RecipesPipeline\5b2IP\src\series_recipe.jl:14
 [4] recipe_pipeline!(::Plots.Plot{Plots.GRBackend}, ::Dict{Symbol,Any}, ::Tuple{Array{Measurement{Float64},1}}) at C:\Users\invis\.julia\packages\RecipesPipeline\5b2IP\src\RecipesPipeline.jl:95
 [5] _plot!(::Plots.Plot{Plots.GRBackend}, ::Dict{Symbol,Any}, ::Tuple{Array{Measurement{Float64},1}}) at
C:\Users\invis\.julia\packages\Plots\l9il6\src\plot.jl:167
 [6] plot(::Array{Measurement{Float64},1}; kw::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\Users\invis\.julia\packages\Plots\l9il6\src\plot.jl:57
 [7] plot(::Array{Measurement{Float64},1}) at C:\Users\invis\.julia\packages\Plots\l9il6\src\plot.jl:51
 [8] top-level scope at REPL[5]:1
 [9] eval(::Module, ::Any) at .\boot.jl:331
 [10] eval_user_input(::Any, ::REPL.REPLBackend) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.4\REPL\src\REPL.jl:86
 [11] run_backend(::REPL.REPLBackend) at C:\Users\invis\.julia\packages\Revise\AMRie\src\Revise.jl:1023
 [12] top-level scope at none:0

Plots 1.2.2 works just fine.
(I use the master branch of Measurements.jl)

Backends

This bug occurs on ( insert x below )

Backend	yes	no	untested
gr (default)	x
pyplot			x
plotly			x
plotlyjs			x
pgfplotsx			x
inspectdr			x

Versions

Plots.jl version: 1.2.3
Backend version: GR 0.49.1
Output of versioninfo():

julia> versioninfo()
Julia Version 1.4.1
Commit 381693d3df* (2020-04-14 17:20 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-8.0.1 (ORCJIT, skylake)
Environment:
  JULIA_NUM_THREADS = 4
  JULIA_CUDA_USE_BINARYBUILDER = false